cmake_minimum_required (VERSION 3.0)
include(CheckFunctionExists)
include(CheckSymbolExists)
include(CheckLibraryExists)
include(CheckIncludeFiles)
include(CheckTypeSize)
set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}" ${CMAKE_MODULE_PATH})
include(cmake_export_symbol)
include(GNUInstallDirs)
project (LibreSSL C ASM)
enable_testing()
file(READ ${CMAKE_CURRENT_SOURCE_DIR}/ssl/VERSION SSL_VERSION)
string(STRIP ${SSL_VERSION} SSL_VERSION)
string(REPLACE ":" "." SSL_VERSION ${SSL_VERSION})
string(REGEX REPLACE "\\..*" "" SSL_MAJOR_VERSION ${SSL_VERSION})
file(READ ${CMAKE_CURRENT_SOURCE_DIR}/crypto/VERSION CRYPTO_VERSION)
string(STRIP ${CRYPTO_VERSION} CRYPTO_VERSION)
string(REPLACE ":" "." CRYPTO_VERSION ${CRYPTO_VERSION})
string(REGEX REPLACE "\\..*" "" CRYPTO_MAJOR_VERSION ${CRYPTO_VERSION})
file(READ ${CMAKE_CURRENT_SOURCE_DIR}/tls/VERSION TLS_VERSION)
string(STRIP ${TLS_VERSION} TLS_VERSION)
string(REPLACE ":" "." TLS_VERSION ${TLS_VERSION})
string(REGEX REPLACE "\\..*" "" TLS_MAJOR_VERSION ${TLS_VERSION})
option(LIBRESSL_SKIP_INSTALL "Skip installation" ${LIBRESSL_SKIP_INSTALL})
option(LIBRESSL_APPS "Build apps" ON)
option(LIBRESSL_TESTS "Build tests" ON)
option(ENABLE_ASM "Enable assembly" ON)
option(ENABLE_EXTRATESTS "Enable extra tests that may be unreliable on some platforms" OFF)
option(ENABLE_NC "Enable installing TLS-enabled nc(1)" OFF)
set(OPENSSLDIR ${OPENSSLDIR} CACHE PATH "Set the default openssl directory" FORCE)
if(NOT LIBRESSL_SKIP_INSTALL)
set( ENABLE_LIBRESSL_INSTALL ON )
endif(NOT LIBRESSL_SKIP_INSTALL)
set(BUILD_NC true)
if(CMAKE_SYSTEM_NAME MATCHES "Darwin")
add_definitions(-fno-common)
endif()
if(CMAKE_SYSTEM_NAME MATCHES "OpenBSD")
add_definitions(-DHAVE_ATTRIBUTE__BOUNDED__)
add_definitions(-DHAVE_ATTRIBUTE__DEAD__)
endif()
if(CMAKE_SYSTEM_NAME MATCHES "Linux")
add_definitions(-D_DEFAULT_SOURCE)
add_definitions(-D_BSD_SOURCE)
add_definitions(-D_POSIX_SOURCE)
add_definitions(-D_GNU_SOURCE)
set(PLATFORM_LIBS ${PLATFORM_LIBS} pthread)
endif()
if(WIN32 OR (CMAKE_SYSTEM_NAME MATCHES "MINGW"))
set(BUILD_NC false)
add_definitions(-D_GNU_SOURCE)
add_definitions(-D_POSIX)
add_definitions(-D_POSIX_SOURCE)
add_definitions(-D__USE_MINGW_ANSI_STDIO)
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2 -Wall")
if(CMAKE_SYSTEM_NAME MATCHES "HP-UX")
if(CMAKE_C_COMPILER MATCHES "gcc")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99 -fno-strict-aliasing")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mlp64")
else()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} +DD64 +Otype_safety=off")
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_XOPEN_SOURCE=600 -D__STRICT_ALIGNMENT")
set(PLATFORM_LIBS ${PLATFORM_LIBS} pthread)
endif()
if(CMAKE_SYSTEM_NAME MATCHES "SunOS")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99 -fno-strict-aliasing")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D__EXTENSIONS__")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_XOPEN_SOURCE=600")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DBSD_COMP")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fpic")
set(PLATFORM_LIBS ${PLATFORM_LIBS} nsl socket)
endif()
add_definitions(-DLIBRESSL_INTERNAL)
add_definitions(-DOPENSSL_NO_HW_PADLOCK)
add_definitions(-D__BEGIN_HIDDEN_DECLS=)
add_definitions(-D__END_HIDDEN_DECLS=)
set(CMAKE_POSITION_INDEPENDENT_CODE true)
if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_C_COMPILER_ID MATCHES "Clang")
add_definitions(-Wno-pointer-sign)
endif()
if(WIN32)
add_definitions(-Drestrict)
add_definitions(-D_CRT_SECURE_NO_WARNINGS)
add_definitions(-D_CRT_DEPRECATED_NO_WARNINGS)
add_definitions(-D_REENTRANT -D_POSIX_THREAD_SAFE_FUNCTIONS)
add_definitions(-DWIN32_LEAN_AND_MEAN -D_WIN32_WINNT=0x0600)
add_definitions(-DCPPFLAGS -DNO_SYSLOG -DNO_CRYPT)
set(PLATFORM_LIBS ${PLATFORM_LIBS} ws2_32)
endif()
if(MSVC)
add_definitions(-Dinline=__inline)
message(STATUS "Using [${CMAKE_C_COMPILER_ID}] compiler")
if(CMAKE_C_COMPILER_ID MATCHES "MSVC")
set(MSVC_DISABLED_WARNINGS_LIST
"C4018" # 'expression' : signed/unsigned mismatch
"C4057" # 'operator' : 'identifier1' indirection to
# slightly different base types from 'identifier2'
"C4100" # 'identifier' : unreferenced formal parameter
"C4127" # conditional expression is constant
"C4146" # unary minus operator applied to unsigned type,
# result still unsigned
"C4244" # 'argument' : conversion from 'type1' to 'type2',
# possible loss of data
"C4245" # 'conversion' : conversion from 'type1' to 'type2',
# signed/unsigned mismatch
"C4267" # 'var' : conversion from 'size_t' to 'type',
# possible loss of data
"C4389" # 'operator' : signed/unsigned mismatch
"C4706" # assignment within conditional expression
"C4996" # The POSIX name for this item is deprecated.
# Instead, use the ISO C and C++ conformant name
)
elseif(CMAKE_C_COMPILER_ID MATCHES "Intel")
add_definitions(-D_CRT_SUPPRESS_RESTRICT)
set(MSVC_DISABLED_WARNINGS_LIST
"C111" # Unreachable statement
"C128" # Unreachable loop
"C167" # Unexplict casting unsigned to signed
"C186" # Pointless comparison of unsigned int with zero
"C188" # Enumerated type mixed with another type
"C344" # Redeclared type
"C556" # Unexplict casting signed to unsigned
"C869" # Unreferenced parameters
"C1786" # Deprecated functions
"C2545" # Empty else statement
"C2557" # Comparing signed to unsigned
"C2722" # List init syntax is c++11 feature
"C3280" # Declaration hides variable
)
endif()
string(REPLACE "C" " -wd" MSVC_DISABLED_WARNINGS_STR
${MSVC_DISABLED_WARNINGS_LIST})
string(REGEX REPLACE "[/-]W[1234][ ]?" "" CMAKE_C_FLAGS ${CMAKE_C_FLAGS})
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -MP -W4 ${MSVC_DISABLED_WARNINGS_STR}")
endif()
check_function_exists(asprintf HAVE_ASPRINTF)
if(HAVE_ASPRINTF)
add_definitions(-DHAVE_ASPRINTF)
endif()
check_function_exists(reallocarray HAVE_REALLOCARRAY)
if(HAVE_REALLOCARRAY)
add_definitions(-DHAVE_REALLOCARRAY)
endif()
check_function_exists(strcasecmp HAVE_STRCASECMP)
if(HAVE_STRCASECMP)
add_definitions(-DHAVE_STRCASECMP)
endif()
check_function_exists(strlcat HAVE_STRLCAT)
if(HAVE_STRLCAT)
add_definitions(-DHAVE_STRLCAT)
endif()
check_function_exists(strlcpy HAVE_STRLCPY)
if(HAVE_STRLCPY)
add_definitions(-DHAVE_STRLCPY)
endif()
check_function_exists(strndup HAVE_STRNDUP)
if(HAVE_STRNDUP)
add_definitions(-DHAVE_STRNDUP)
endif()
if(WIN32)
set(HAVE_STRNLEN true)
add_definitions(-DHAVE_STRNLEN)
else()
check_function_exists(strnlen HAVE_STRNLEN)
if(HAVE_STRNLEN)
add_definitions(-DHAVE_STRNLEN)
endif()
endif()
check_function_exists(strsep HAVE_STRSEP)
if(HAVE_STRSEP)
add_definitions(-DHAVE_STRSEP)
endif()
check_function_exists(timegm HAVE_TIMEGM)
if(HAVE_TIMEGM)
add_definitions(-DHAVE_TIMEGM)
endif()
check_function_exists(arc4random_buf HAVE_ARC4RANDOM_BUF)
if(HAVE_ARC4RANDOM_BUF)
add_definitions(-DHAVE_ARC4RANDOM_BUF)
endif()
check_function_exists(arc4random_uniform HAVE_ARC4RANDOM_UNIFORM)
if(HAVE_ARC4RANDOM_UNIFORM)
add_definitions(-DHAVE_ARC4RANDOM_UNIFORM)
endif()
check_function_exists(explicit_bzero HAVE_EXPLICIT_BZERO)
if(HAVE_EXPLICIT_BZERO)
add_definitions(-DHAVE_EXPLICIT_BZERO)
endif()
check_function_exists(getauxval HAVE_GETAUXVAL)
if(HAVE_GETAUXVAL)
add_definitions(-DHAVE_GETAUXVAL)
endif()
check_function_exists(getentropy HAVE_GETENTROPY)
if(HAVE_GETENTROPY)
add_definitions(-DHAVE_GETENTROPY)
endif()
check_symbol_exists(getpagesize unistd.h HAVE_GETPAGESIZE)
if(HAVE_GETPAGESIZE)
add_definitions(-DHAVE_GETPAGESIZE)
endif()
check_function_exists(getprogname HAVE_GETPROGNAME)
if(HAVE_GETPROGNAME)
add_definitions(-DHAVE_GETPROGNAME)
endif()
check_function_exists(syslog_r HAVE_SYSLOG_R)
if(HAVE_SYSLOG_R)
add_definitions(-DHAVE_SYSLOG_R)
endif()
check_function_exists(syslog HAVE_SYSLOG)
if(HAVE_SYSLOG)
add_definitions(-DHAVE_SYSLOG)
endif()
check_symbol_exists(timespecsub sys/time.h HAVE_TIMESPECSUB)
if(HAVE_TIMESPECSUB)
add_definitions(-DHAVE_TIMESPECSUB)
endif()
check_function_exists(timingsafe_bcmp HAVE_TIMINGSAFE_BCMP)
if(HAVE_TIMINGSAFE_BCMP)
add_definitions(-DHAVE_TIMINGSAFE_BCMP)
endif()
check_function_exists(timingsafe_memcmp HAVE_TIMINGSAFE_MEMCMP)
if(HAVE_MEMCMP)
add_definitions(-DHAVE_MEMCMP)
endif()
check_function_exists(memmem HAVE_MEMMEM)
if(HAVE_MEMMEM)
add_definitions(-DHAVE_MEMMEM)
endif()
check_include_files(err.h HAVE_ERR_H)
if(HAVE_ERR_H)
add_definitions(-DHAVE_ERR_H)
endif()
if(ENABLE_ASM)
if("${CMAKE_C_COMPILER_ABI}" STREQUAL "ELF")
if("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "(x86_64|amd64)")
set(HOST_ASM_ELF_X86_64 true)
elseif("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "arm")
set(HOST_ASM_ELF_ARMV4 true)
elseif(CMAKE_SYSTEM_NAME STREQUAL "SunOS" AND "${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "i386")
set(HOST_ASM_ELF_X86_64 true)
endif()
elseif(APPLE AND "${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "x86_64")
set(HOST_ASM_MACOSX_X86_64 true)
elseif(MSVC AND "${CMAKE_GENERATOR}" MATCHES "Win64")
set(HOST_ASM_MASM_X86_64 true)
ENABLE_LANGUAGE(ASM_MASM)
elseif(CMAKE_SYSTEM_NAME MATCHES "MINGW" AND "${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "x86_64")
set(HOST_ASM_MINGW64_X86_64 true)
endif()
endif()
if(CMAKE_SYSTEM_NAME MATCHES "Linux")
# Check if we need -lrt to get clock_gettime on Linux
check_library_exists(rt clock_gettime "time.h" HAVE_CLOCK_GETTIME)
if (HAVE_CLOCK_GETTIME)
set(PLATFORM_LIBS ${PLATFORM_LIBS} rt)
endif()
else()
# Otherwise, simply check if it exists
check_function_exists(clock_gettime HAVE_CLOCK_GETTIME)
endif()
if(HAVE_CLOCK_GETTIME)
add_definitions(-DHAVE_CLOCK_GETTIME)
endif()
check_type_size(time_t SIZEOF_TIME_T)
if(SIZEOF_TIME_T STREQUAL "4")
set(SMALL_TIME_T true)
add_definitions(-DSMALL_TIME_T)
message(WARNING " ** Warning, this system is unable to represent times past 2038\n"
" ** It will behave incorrectly when handling valid RFC5280 dates")
endif()
add_definitions(-DSIZEOF_TIME_T=${SIZEOF_TIME_T})
set(OPENSSL_LIBS tls ssl crypto ${PLATFORM_LIBS})
add_subdirectory(crypto)
add_subdirectory(ssl)
if(LIBRESSL_APPS)
add_subdirectory(apps)
endif()
add_subdirectory(tls)
add_subdirectory(include)
if(NOT MSVC)
add_subdirectory(man)
endif()
# Tests require the openssl executable and are unavailable when building shared libraries
if(LIBRESSL_APPS AND LIBRESSL_TESTS)
add_subdirectory(tests)
endif()
if(NOT MSVC)
# Create pkgconfig files.
set(prefix ${CMAKE_INSTALL_PREFIX})
set(exec_prefix \${prefix})
set(libdir \${exec_prefix}/${CMAKE_INSTALL_LIBDIR})
set(includedir \${prefix}/include)
if(PLATFORM_LIBS)
string(REGEX REPLACE ";" " -l" PLATFORM_LDADD ";${PLATFORM_LIBS}")
endif()
file(STRINGS "VERSION" VERSION LIMIT_COUNT 1)
file(GLOB OPENSSL_PKGCONFIGS "*.pc.in")
foreach(file ${OPENSSL_PKGCONFIGS})
get_filename_component(filename ${file} NAME)
string(REPLACE ".in" "" new_file "${filename}")
configure_file(${filename} pkgconfig/${new_file} @ONLY)
endforeach()
install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/pkgconfig
DESTINATION ${CMAKE_INSTALL_LIBDIR})
endif()
if(NOT TARGET uninstall)
configure_file(
"${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
"${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
IMMEDIATE @ONLY)
add_custom_target(uninstall
COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
endif()